Distributor Problem - Should Condenser Be Isolated?
#1
Posted 18 March 2016 - 11:15 PM
Thanks
Dan
#2
Posted 18 March 2016 - 11:44 PM
#3
Posted 18 March 2016 - 11:46 PM
#4
Posted 19 March 2016 - 12:32 AM
The condenser is just a capacitor, no current should flow through it, but it will "soak up" a little bit while it charges. Probably enough to fool a low power device like a meter.
#5
Posted 19 March 2016 - 07:55 AM
try using a test lamp
#6
Posted 19 March 2016 - 08:54 AM
#7
Posted 19 March 2016 - 10:18 AM
#8
Posted 19 March 2016 - 10:51 AM
yeah crap condensor,
basically a condensor is two large plates, one with he black wire connected and one with the case connected, when a voltage is applied an electro static charge builds up between the plates, and when diconnected the charge wants to flow out of the plates... kind of like a battery but faster acting. this effect is used in smoothing voltages, and in the case of points it prevents the points arcing and burning out....
in condenders the two plates are rolled up foil with a thin insulator between them, often aluminium with one side anodized to make it non conductive... if this insulation breaks down ( usually from over voltage or heat) the capacity will decrease or totally short out.
Unfortunaltly moder condensors are pretty crappy in terms of quality and fail quite often... always carry a spare, and spare points!
#9
Posted 19 March 2016 - 12:57 PM
Gazza82 made a point that I would like to follow up on.
What distributor is this? If it is a 23D or 25D series, there are insulators that have to be located correctly of the points and condenser will appear permanently shorted to earth.
When you made your resistance measurements, was the condenser's black wire disconnected... were you measuring resistance from the disconnected black wire to the metal shell of the condenser?
#10
Posted 19 March 2016 - 03:17 PM
#11
Posted 19 March 2016 - 05:03 PM
if you disconnect the condenser , does the engine start ?
it will run rough - due to points sparking - so don't run for long , otherwise they will burn
as above - condensers are now carp - buy 2 , 1 as a spare
Edited by sledgehammer, 19 March 2016 - 05:04 PM.
#12
Posted 19 March 2016 - 05:31 PM
#13
Posted 19 March 2016 - 06:27 PM
Where are you observing the spark... at the points or at the spark plugs and what color is the spark?
When did this engine last run and what has been done to the engine?
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